The Accuracy of the M Yard.

Thom said. “Avebury provides the final proof of the exact size of the Megalithic Yard and demonstrates the use of larger units of 2.5 and 10 M Yards.”

“One of the almost perfect triangles is at Penmaenmawr, where in half yard units we get … a perfect Pythagorean Triangle.” ( I have left out the numbers)

Thom said. “Avebury provides the final proof of the exact size of the Megalithic Yard and demonstrates the use of larger units of 2.5 and 10 M Yards.”